US2885154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for grinding solid materials by fluid energy
Assignee: Texaco Inc
•
Filing: 1954-08-17
•
Granted: 1959-05-05
•
Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Eastman Du Bois
- 👤 Jr Frank E Guptill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:47
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/06; B02C21/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2560807A
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US2735787A
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US1493579A
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GB315229A
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US2332953A
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US2596352A
Cited
US2552603A
Cited
GB683318A
Cited
US2612320A
Cited
US2704635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |